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The role of interface concentration gradient in the formation of silver dendritic particles
Wang, Kai1,2; Chen, Yongxiu1,2; Dou, Xiangyu1,2; Han, Yongsheng1,2
2021-05-01
Source PublicationADVANCED POWDER TECHNOLOGY
ISSN0921-8831
Volume32Issue:5Pages:1766-1773
AbstractDendritic structures are widely present in nature, from river networks to snowflakes. There is a long-term interest in discovering their common formation mechanism, especially the driving force leading to the branching and the reason to keep symmetry. The inhibition of lithium dendrites in secondary batteries also calls for the deep understanding on the formation of dendritic structures. Here in this article, we report an investigation on the driving force of the formation of dendritic structures. Silver particles are synthesized by Galvanic replacement reaction (GRR) in which metal rods are immersed into the silver nitrate solution to reduce silver ions followed by silver particles formation on the surface of rods. The silver ions concentration profile near the rods is measured by Mach-Zehnder interferometer during the reaction. It is found that the formation of silver dendritic particles is accompanied by the interface concentration gradient. A regulation on the gradient leads to the change of silver morphology, experimentally confirming the dominant role of the interface concentration gradient in the formation of diverse structures. (C)& nbsp;2021 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder
KeywordSilver particles Dendritic structures Concentration gradient Diffusion Reaction
DOI10.1016/j.apt.2021.03.036
Language英语
WOS KeywordMORPHOLOGICAL TRANSITIONS ; ELECTROLESS DEPOSITION ; REPLACEMENT REACTION ; CHEMICAL DIFFUSION ; ELECTRODEPOSITION ; NANOWIRES ; AG ; NANOSTRUCTURES ; COMPROMISE ; EVOLUTION
Funding ProjectNational Natural Science Foundation of China[91934302] ; National Natural Science Foundation of China[21978298] ; National Natural Science Foundation of China[U1862117] ; State Key Laboratory of Multiphase Complex Systems[MPCS-2019-D-12] ; MPCS Facility Upgradation Program
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China ; State Key Laboratory of Multiphase Complex Systems ; MPCS Facility Upgradation Program
WOS IDWOS:000645088900004
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48549
Collection中国科学院过程工程研究所
Corresponding AuthorHan, Yongsheng
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Kai,Chen, Yongxiu,Dou, Xiangyu,et al. The role of interface concentration gradient in the formation of silver dendritic particles[J]. ADVANCED POWDER TECHNOLOGY,2021,32(5):1766-1773.
APA Wang, Kai,Chen, Yongxiu,Dou, Xiangyu,&Han, Yongsheng.(2021).The role of interface concentration gradient in the formation of silver dendritic particles.ADVANCED POWDER TECHNOLOGY,32(5),1766-1773.
MLA Wang, Kai,et al."The role of interface concentration gradient in the formation of silver dendritic particles".ADVANCED POWDER TECHNOLOGY 32.5(2021):1766-1773.
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